$marCenter:0 auto;
$marT:margin-top;
$marB:margin-bottom;
$fz:font-size;
body{
    position: relative;
}
.wrap{
    width: 6.40rem;
    height:11.35rem;
   background:url("../images/share/shareBg.jpg") no-repeat;
   background-size: 100% 100%;
   position: relative;
   .touxiang{
       width:1.76rem;
       height: 1.76rem;;
       border-radius:50%;
       background-color: #fff;
       margin:$marCenter;
      #{$marT}:.36rem;
      #{$marB}:.12rem;   
      position: relative;
      
      img{
        width: 1.38rem;
        height: 1.34rem;
       position: absolute;
       left: 50%;
       top:50%;
       transform:translate(-50%,-50%);
    } 
   }
}